Improvement in ranges



J. BROWNBACK & MQTOWERS, Jr.

RANGE. No. 189,919. Patented Apr'11z4,1e77.`

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PATEET; Orr-Ion yJAMES EEOWNBAOK, OE LIMEEIOK STATION, AND MICHAEL TOwEES, JE.,

OF PHCENIXVILLE, ASSIGNORS TO MARGH, BROWN BACK & CO., OF LIM- ERIGK STATION, PENNSYLVANIA.

IMPROVEMENT |N RANcEsgv Specification forming part of Letters Patent N o.l 189,919, dated April 24, 1877; application filed i v June 27, v1876.

To all whom it may-concern:

Beit known that we, JAMES BR'owNBAcK and MICHAEL TOWERS, Jr., of Limerick Station and Phoenixville, respectively, in the respective counties of `Montgomery and Chester, and State of Pennsylvania, have invented certain jnew and useful Improvements in Ranges; andwe do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the ments in double-oven warming-closet ranges,

whereby the `heat maybe made to entirely Surround both the upper and lower ovens, or, if desired, it may be cutoff from passing beneath the lower oven, and caused to flow through an intermediate or dividing flue that serves to separate the bottom and top plates of the respective upper and lower ovens 5 and to that end our invention consists in certain details of construction and arrangement of parts, which will more fully appear from the following description and claims.

A is the upper oven, having a horizontal ue, B, extending over its upper plate, the said ue leading from the fire-pot C to the rear descending flue D. The lower oven E is Separated from the upper oven A by an intervening horizontal due, F, which connects at the rear of the ovens with the descending ue D. G is a swinging damper, hinged at g within the forward portion of the due F, and said damper controls an opening in the side of the range leading into the side exit-flue H,

which extends from the bottom to the top of the range. A rod, h, is attached to the damper G, and the other end of Said rod is pivoted to the inner end of an oscillating lever,

which latter freely turns on a beariugj. By

placing the socketend of the Vshaker'on the outer endof lever t' theV damper G" may be opened'or closed at will. k is a ledge, secured to the upper plate of loweroven E, and serves as a stop to limit the movement of damper G. When damper G is `thrown open, the heat, passing down the descending -ue D, 'will flow through the intermediate flue F, thereby warming the bottom of oven A and the top of lower oven E, `and then pass out into the exit-flue H. Therear end of lower oven E is provided with a descending"f lue,'I, which merges into the lower horizontal hue J. Within the flue-space 1,'and preferably on a line with the upper and lower walls K and L of the lower oven E, the perforated divisionplates m and n are placed, the upper plate having large perforations u2, while the lower plate n is provided with small perforations 0, the said plates Serving to retain the heat for a time within the rear descending flue I. These openings are preferably of a circular form, though they may be made of rectangular or of any other desired shape, or single rectangular openings may' be substituted therefor. Also, instead of a number of perforations in said division-plates m and u, there may be substituted in each one a long, narrow, rectangular opening, making with the flue I an open flue between the horizontal hues F and J. This rectangular opening in' each division-plate would be of equal length in both plates, but wider in plate m than in the lower plate n, in order to retain the heat for a time within the rear descending ue I. A descending Hue, M, is formed in front of the lower oven E, and said due constitutes a connection between the horizontal iues F and J. Within the lower due J due-plates r and s are arranged on each side of the exit-due H. When damper G is closed, the heat passing down the descending ilue D is divided into two l currents, one volume passing through the in termediate flue F and down the frontgdescending ue M and into the lower Hue J, where it is retarded in its course by the flue-plate r be-V fore it reaches the exit-iiue H. The other volume of heat passes through the upper perforated plate m, and is slightly retarded in its progress by the plate n, which is provided with perforations of lessl area than the upper plate. The heat then passes into the lowerl flue, around theue-plate s, and into the eXitue H, `A dust-Hue, O, is formed between the rear plate of the re-pot and front plate of the' upper loven,and the opening in-said ueis A also be jhighly heated vand -used as a .cooking or baking oven.

Inorder xto'admit of .the `due-'space at thel right rend .of the `lower warming-oven, the l range may be .made Iplain yor boxed, `1and also the range may -be made ywith a plain or sunk f bottom, .within which thelower flue is formed.

4Having fully .described our invention, what we olaim',and.desire to secure Aby Letters Pati l ent, iS-i-r `1. In a range,the combination, with its upl per and lowerovens,of an intermediate flue, E, and damper'Gr, substantially as and for ythe purpose set forth.

2. In la range, the combination with the -u-pper and flower ovens of the fines B, D, F, I, J, and M, and damper Gr, substantially as and vfor the purpose specified.

3. In a range, the combination with an upper and lower oven and 11p-per intermediate and lower distributing lines, of an exit-flue formed f on .-theside of the-range, having `openings .Qmnmunicatng `with the intermediate and lower flue, and a damper located in the intermediate flue, and adapted to govern an :opening in the exit-Hue, substantially as and for the purpose set forth.

4. In a range, the combination of the perforated plates ymand with 1,the lower oven .substantially as and for the purpose specied.

5. The combination of the jointed rods or levers hi with thegs-w-inging damper .G and the l stop y1c,@substantiallyas and for the purpose 6. The combination, with the lues J and H, of .the vflue-plates and n, 4substantially as and 4for the purpose set forth,

In ytestimony that we claim .the foregoing as our own We affix our signatures in presence of two Witnesses.

vJaime BROWNBAOK.

MICHAEL TQWERS, JR. Witnesses:

.JEROME J OH-N, H. H. GARGUs, 

